Red-spotted Bluethroat

The
subspecies
of the Bluethroat Luscinia svecica which
breeds in northern Europe and northern Asia and which occurs regularly
in the British Isles. Its
scientific name
is L.s. svecica.
The 'White-spotted Bluethroat' is the subspecies which breeds
in central and southern Europe east to Russia, and this too has
occurred in the British Isles, though rarely. Its scientific
name is L.s. cyanecula.